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Ask The Experts - Can I crush ore on my BLM claim and still be a small miner?
January 2020 by Chris Ralph
The Portable XRF Gun
While there is no metal detector that will see only gold, there is a device that can reliably distinguish gold from lead, copper, iron or other metals. It is an X-Ray fluorescence tester, sometimes called an XRF gun.
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Ask The Experts - Is this gold?
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Questions regarding patented and unpatented mining claims and the legal rights surrounding them.
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Bismuth oxide for assaying?
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